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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1508860Generated: November 1, 2026

4-Aminobutanamide → 4-((2-(3-Chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)amino)butanamide

https://huagongshe.com/reaction/1508860

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminobutanamideHCID 18615—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-chloro-2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidineHCID 21882677—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product4-((2-(3-Chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)amino)butanamideHCID 9011254161%

Reaction Steps

A solution of 4-chloro-2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine (0.032 g, 0.12 mmol), 4-aminobutanamide (0.061 g, 0.60 mmol), and N,N-diisopropylethylamine (0.031 g, 0.24 mmol) in NMP (3 mL) was heated at 90° C. overnight. After this time, the reaction mixture was cooled, diluted water, and extracted with ethyl acetate. The combined organic layer was dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated to afford the title compound (0.019 g, 61%) as a white solid. MW=330.81. 1H NMR (DMSO-d6, 500 MHz) δ 8.31-8.26 (m, 2H), 7.51-7.46 (m, 2H), 7.27 (s, 1H), 7.03 (t, J=5.5 Hz, 1H), 6.73 (s, 1H), 3.48 (q, J=6.7 Hz, 2H), 2.81 (t, J=7.6 Hz, 2H), 2.68 (t, J=7.3 Hz, 2H), 2.16 (t, J=7.6 Hz, 2H), 2.03 (quin, J=7.6 Hz, 2H), 1.84 (quin, J=7.3 Hz, 2H); APCI MS m/z 331 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09221843B2
Source datasetuspto-grants-2015_12
ORD IDord-c351d794903f4a8494a6b880dcda415c
Source noteuspto-grants-2015_12